WHO glossary of assisted reproductive technology

word cloud_transferI’d like to share a World Health Organization (WHO) glossary I stumbled across a while back when I was translating an article on infertility. The International Committee for Monitoring Assisted Reproductive Technology (ICMART) and the WHO compiled this Revised Glossary on Assisted Reproductive Technology in 2009, and since then it has been translated into Dutch, Russian and Spanish.


The Dutch and Russian glossaries are bilingual PDF files, but the Spanish translation has been published as a monolingual resource. The localised alphabetical order makes automatic alignment impossible, and so here is the English-Spanish version, aligned by hand. Before converting the glossary into a termbase (Excel>Glossary Converter>SDLTB) I separated out the abbreviations and synonyms to get better leverage, but in the table below I’ve left the entries as they appear in their original format.*

Assisted hatching Eclosión asistida
Assisted reproductive technology (ART) Técnicas de Reproducción Asistida (TRA)
Biochemical pregnancy (preclinical spontaneous abortion/ miscarriage) Embarazo bioquímico (aborto espontáneo preclínico)
Blastocyst Blastocisto
Cancelled cycle Ciclo cancelado
Clinical pregnancy Embarazo clínico
Clinical pregnancy rate Tasa de embarazo clínico
Clinical pregnancy with fetal heart beat Embarazo clínico con latido cardíaco fetal
Congenital anomalies Anomalías congénitas
Controlled ovarian stimulation (COS) for ART Estimulación ovárica controlada (EOC) para TRA
Controlled ovarian stimulation (COS) for non-ART cycles Estimulación ovárica controlada (EOC) para ciclos no de TRA
Cryopreservation Criopreservación
Cumulative delivery rate with at least one live born baby Tasa total de nacimientos con al menos un nacido vivo
Delivery Parto
Delivery rate Tasa de partos
Delivery rate after ART treatment per patient Tasa de parto después de TRA por paciente
Early neonatal death Muerte neonatal temprana
Ectopic pregnancy Embarazo ectópico
Elective embryo transfer Transferencia electiva de embriones
Embryo Embrión
Embryo donation Donación de embriones
Embryo recipient cycle Ciclo de receptora de embriones
Embryo transfer (ET) Transferencia de embriones (TE)
Embryo transfer cycle Ciclo de transferencia de embriones
Embryo/fetus reduction Embrio/feto reducción
Extremely low birth weight Peso bajo al nacer (extremo)
Extremely preterm birth Nacimiento prematuro extremo
Fertilization Fecundación
Fetal death (stillbirth) Muerte fetal (mortinato)
Fetus Feto
Frozen/thawed embryo transfer cycle (FET) Ciclo de transferencia de embriones criopreservados/descongelados (TEC/D)
Frozen/thawed oocyte cycle Ciclo de transferencia de ovocitos criopreservados/descongelados
Full-term birth Nacimiento a término completo
Gamete intrafallopian transfer (GIFT) Transferencia intratubárica de gametos
Gestational age Edad gestacional
Gestational carrier (surrogate) Gestante subrogada
Gestational sac Saco gestacional
Hatching Eclosión
High-order multiple Múltiples de alto orden
Implantation Implantación
Implantation rate Tasa de implantación
In vitro fertilization (IVF) Fecundación in vitro (FIV)
Induced abortion Aborto inducido
Infertility Infertilidad
Initiated cycle Ciclo iniciado
IntraCytoplasmic Sperm Injection (ICSI) Inyección intracitoplasmática de espermatozoide (ICSI)
Live birth Nacimiento vivo
Live birth delivery rate Tasa de nacimientos vivos
Low birth weight Bajo peso al nacer
Medically Assisted Reproduction (MAR) Reproducción médicamente asistida (RMA)
MESA (Microsurgical Epididymal Sperm Aspiration) MESA (aspiración microquirúrgica de espermatozoides epidídimarios)
MESE (Microsurgical Epididymal Sperm Extraction) MESE (extracción microquirúrgica de espermatozoides epidídimarios)
Micromanipulation Micromanipulación
MicroTESE (Microsurgical Testicular Sperm Extraction) MicroTESE (extracción microquirúrgica de espermatozoides testiculares)
Mild ovarian stimulation for IVF Estimulación ovárica suave para FIV
Missed abortion Aborto retenido
Modified natural cycle Ciclo natural modificado
Multiple gestation/birth Gestación/ Nacimiento múltiple
Natural cycle IVF Ciclo natural de FIV
Neonatal death Muerte neonatal
Neonatal period Período neonatal
Oocyte donation cycle Ciclo de donación de ovocitos
Oocyte recipient cycle Ciclo de receptora de ovocitos
Ovarian Hyper Stimulation Syndrome (OHSS) Síndrome de hiperestimulación ovárica (SHO)
Ovarian torsion Torsión ovárica
Ovulation Induction (OI) Inducción de ovulación (IO)
Perinatal mortality Mortalidad perinatal
PESA (Percutaneous Epididymal Sperm Aspiration) PESA (aspiración percutánea de espermatozoides epidídimarios)
Post-term birth Nacimiento postérmino
Preimplantation Genetic Diagnosis (PGD) Diagnóstico genético preimplantation (DGP)
Preimplantation Genetic Screening (PGS) Tamizaje genético preimplantation (PGS)
Preterm birth Nacimiento pretérmino
Recurrent spontaneous abortion/miscarriage Aborto recurrente espontáneo
Reproductive surgery Cirugía reproductiva
Severe Ovarian Hyper Stimulation Syndrome (OHSS) Síndrome de hiperestimulación ovárica (SHO) severo
Small for gestational age Pequeño para edad gestacional
Sperm recipient cycle Ciclo para receptora de espermatozoides
Spontaneous abortion/miscarriage Aborto espontáneo
TESA (Testicular Sperm Aspiration) TESA (aspiración de espermatozoides testiculares)
TESE (Testicular Sperm Extraction) TESE (extracción de espermatozoides testiculares)
Total delivery rate with at least one live birth Tasa acumulativa de partos con al menos un bebé nacido vivo
Vanishing sac(s) or embryo(s) Saco(s) o embrión (es) evanescente(s)
Very low birth weight Muy bajo peso al nacer
Very preterm birth Nacimiento pretérmino (extremo)
Vitrification Vitrificación
Zygote Zigoto
Zygote intra-fallopian transfer (ZIFT) Transferencia intratubárica de zigoto
* Reproduced with the permission of the publisher. The International Committee for Monitoring Assisted Reproductive Technology and the World Health Organization Revised Glossary on ART Terminology, 2009, accessed 08 February 2015.

Separating the Wheat from the Chaff

Using the check-list that I drew up in my blog post on Separating the Wheat from the Chaff, I can confidently award this WHO infertility glossary a green tick in my traffic light system.

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12 Responses to WHO glossary of assisted reproductive technology

  1. ¡Muchas gracias, Emma!

  2. Emilio says:

    Estupendo Emma, ¡gracias desde Perú!

    Ah… I wish I could have more of these duly aligned, very helpful EN-SP medical glossaries!

  3. Verônica Santos says:

    Thank you, Emma

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  6. Anne says:

    Thanks Emma!

  7. Pingback: (EN) (ES) – WHO glossary of assisted reproductive technology | Emma Goldsmith | Glossarissimo!

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  10. Jason Willis-Lee says:

    Thanks Emma, I did a large project for a IVF clinic a few months ago. This will be very useful if they come back with return business.

  11. EP says:

    Reproductive technology? Sounds pretty sexy to me. <;-)

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